I'll take the shroud off on the inside of the MH and check for proper operation of the diverter.
For clarification and declutter here, no, the roof AC was never changed out. The Vegas comes with a 13,500 or 15000. Im not sure if it's a heat pump or strip. It doesn't matter for my problem of "air flow"! The MHs have a strange to me installation whereby the plenum on the inside would indicate a stand alone install, yet these MHs are also ducted with vents all along the ceiling. Seems stupid to me but it is what it is.
__________________
|